3 * Copyright (c) 2001 Fabrice Bellard.
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
36 * First version by Francois Revol revol@free.fr
37 * Seek function by Gael Chardon gael.dev@4now.net
39 * Features and limitations:
40 * - reads most of the QT files I have (at least the structure),
41 * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
42 * FIXED, Francois Revol, 07/17/2002
43 * - ffmpeg has nearly none of the usual QuickTime codecs,
44 * although I succesfully dumped raw and mp3 audio tracks off .mov files.
45 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
46 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
47 * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
48 * http://mpeg.telecomitalialab.com/faq.htm
49 * - the code is quite ugly... maybe I won't do it recursive next time :-)
50 * - seek is not supported with files that contain edit list
52 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
53 * when coding this :) (it's a writer anyway)
55 * Reference documents:
56 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
58 * http://developer.apple.com/documentation/QuickTime/QTFF/
59 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
60 * QuickTime is a trademark of Apple (AFAIK :))
63 #include "qtpalette.h"
69 static const CodecTag mov_video_tags[] = {
70 /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
71 /* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
72 /* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
73 /* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
78 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
79 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
80 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
81 { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
82 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
83 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
84 { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
86 { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
87 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
88 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
89 { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
90 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
91 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
92 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
93 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
94 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
95 { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
96 { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
97 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
98 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
99 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
100 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
101 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
102 { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
103 { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
104 { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
105 { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
106 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
107 { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */
108 { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* HDV produced by FCP */
109 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
110 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
111 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
112 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
113 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
114 //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
115 //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
116 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
117 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
118 { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
119 //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
120 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
121 { CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
122 { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
123 { CODEC_ID_NONE, 0 },
126 static const CodecTag mov_audio_tags[] = {
127 { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
128 { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
129 { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
130 { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
131 { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
132 { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
133 { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
134 { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
135 { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
136 { CODEC_ID_ADPCM_MS, MKTAG('m', 's', 0x00, 0x02) }, /* MS ADPCM */
137 { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
138 { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
140 { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
141 { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
142 { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
143 /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
145 { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
146 /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
147 { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
148 { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
149 { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
150 { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
151 { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
152 { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
153 { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
154 { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
155 { CODEC_ID_NONE, 0 },
158 /* the QuickTime file format is quite convoluted...
159 * it has lots of index tables, each indexing something in another one...
160 * Here we just use what is needed to read the chunks
163 typedef struct MOV_sample_to_chunk_tbl {
167 } MOV_sample_to_chunk_tbl;
172 int64_t size; /* total size (excluding the size and type fields) */
182 typedef struct MOV_mdat_atom_s {
189 uint32_t flags; // 24bit
191 /* 0x03 ESDescrTag */
193 #define MP4ODescrTag 0x01
194 #define MP4IODescrTag 0x02
195 #define MP4ESDescrTag 0x03
196 #define MP4DecConfigDescrTag 0x04
197 #define MP4DecSpecificDescrTag 0x05
198 #define MP4SLConfigDescrTag 0x06
199 #define MP4ContentIdDescrTag 0x07
200 #define MP4SupplContentIdDescrTag 0x08
201 #define MP4IPIPtrDescrTag 0x09
202 #define MP4IPMPPtrDescrTag 0x0A
203 #define MP4IPMPDescrTag 0x0B
204 #define MP4RegistrationDescrTag 0x0D
205 #define MP4ESIDIncDescrTag 0x0E
206 #define MP4ESIDRefDescrTag 0x0F
207 #define MP4FileIODescrTag 0x10
208 #define MP4FileODescrTag 0x11
209 #define MP4ExtProfileLevelDescrTag 0x13
210 #define MP4ExtDescrTagsStart 0x80
211 #define MP4ExtDescrTagsEnd 0xFE
212 uint8_t stream_priority;
214 /* 0x04 DecConfigDescrTag */
215 uint8_t object_type_id;
217 /* XXX: really streamType is
218 * only 6bit, followed by:
222 uint32_t buffer_size_db; // 24
223 uint32_t max_bitrate;
224 uint32_t avg_bitrate;
226 /* 0x05 DecSpecificDescrTag */
227 uint8_t decoder_cfg_len;
228 uint8_t *decoder_cfg;
230 /* 0x06 SLConfigDescrTag */
231 uint8_t sl_config_len;
235 struct MOVParseTableEntry;
237 typedef struct MOVStreamContext {
238 int ffindex; /* the ffmpeg stream id */
241 int64_t *chunk_offsets;
243 Time2Sample *stts_data;
245 Time2Sample *ctts_data;
246 int edit_count; /* number of 'edit' (elst atom) */
247 long sample_to_chunk_sz;
248 MOV_sample_to_chunk_tbl *sample_to_chunk;
249 int sample_to_ctime_index;
250 int sample_to_ctime_sample;
260 AVRational sample_size_v1;
261 int dv_audio_container;
264 typedef struct MOVContext {
267 int64_t duration; /* duration of the longest track */
268 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
269 int found_mdat; /* we suppose we have enough data to read the file */
273 /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
274 * but we need the info to be able to skip data from those streams in the 'mdat' section
276 MOVStreamContext *streams[MAX_STREAMS];
279 MOV_ctab_t **ctab; /* color tables */
280 const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
281 /* NOTE: for recursion save to/ restore from local variable! */
283 AVPaletteControl palette_control;
284 MOV_mdat_atom_t *mdat_list;
286 DVDemuxContext *dv_demux;
287 AVFormatContext *dv_fctx;
291 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
293 /* those functions parse an atom */
295 1: found what I wanted, exit
296 0: continue to parse next atom
297 -1: error occured, exit
299 typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
301 /* links atom IDs to parse functions */
302 typedef struct MOVParseTableEntry {
304 mov_parse_function func;
305 } MOVParseTableEntry;
307 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
309 int64_t total_size = 0;
314 a.offset = atom.offset;
317 atom.size = 0x7fffffffffffffffLL;
318 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
322 a.size = get_be32(pb);
323 a.type = get_le32(pb);
327 dprintf("type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n", a.type, (char*)&a.type, a.size, atom.size, total_size);
328 if (a.size == 1) { /* 64 bit extended size */
329 a.size = get_be64(pb) - 8;
334 a.size = atom.size - total_size;
338 for (i = 0; c->parse_table[i].type != 0L
339 && c->parse_table[i].type != a.type; i++)
347 if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
348 url_fskip(pb, a.size);
350 offset_t start_pos = url_ftell(pb);
352 err = (c->parse_table[i].func)(c, pb, a);
353 left = a.size - url_ftell(pb) + start_pos;
354 if (left > 0) /* skip garbage at atom end */
359 total_size += a.size;
362 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
363 url_fskip(pb, atom.size - total_size);
369 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
372 url_fskip(pb, atom.size); // for now
374 VERY VERY BROKEN, NEVER execute this, needs rewrite
377 c->ctab = av_realloc(c->ctab, ++c->ctab_size);
378 t = c->ctab[c->ctab_size];
379 t->seed = get_be32(pb);
380 t->flags = get_be16(pb);
381 t->size = get_be16(pb) + 1;
382 len = 2 * t->size * 4;
384 t->clrs = av_malloc(len); // 16bit A R G B
386 get_buffer(pb, t->clrs, len);
393 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
395 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
399 get_byte(pb); /* version */
400 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
403 ctype = get_le32(pb);
404 type = get_le32(pb); /* component subtype */
406 dprintf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
407 dprintf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
408 if(type == MKTAG('v', 'i', 'd', 'e'))
409 st->codec->codec_type = CODEC_TYPE_VIDEO;
410 else if(type == MKTAG('s', 'o', 'u', 'n'))
411 st->codec->codec_type = CODEC_TYPE_AUDIO;
412 get_be32(pb); /* component manufacture */
413 get_be32(pb); /* component flags */
414 get_be32(pb); /* component flags mask */
417 return 0; /* nothing left to read */
419 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
423 static int mov_mp4_read_descr_len(ByteIOContext *pb)
428 int c = get_byte(pb);
429 len = (len << 7) | (c & 0x7f);
436 static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
440 len = mov_mp4_read_descr_len(pb);
441 dprintf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
445 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
447 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
448 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
451 /* Well, broken but suffisant for some MP4 streams */
452 get_be32(pb); /* version + flags */
453 len = mov_mp4_read_descr(pb, &tag);
454 if (tag == MP4ESDescrTag) {
455 get_be16(pb); /* ID */
456 get_byte(pb); /* priority */
458 get_be16(pb); /* ID */
460 len = mov_mp4_read_descr(pb, &tag);
461 if (tag == MP4DecConfigDescrTag) {
462 sc->esds.object_type_id = get_byte(pb);
463 sc->esds.stream_type = get_byte(pb);
464 sc->esds.buffer_size_db = get_be24(pb);
465 sc->esds.max_bitrate = get_be32(pb);
466 sc->esds.avg_bitrate = get_be32(pb);
468 st->codec->codec_id= codec_get_id(ff_mov_obj_type, sc->esds.object_type_id);
469 dprintf("esds object type id %d\n", sc->esds.object_type_id);
470 len = mov_mp4_read_descr(pb, &tag);
471 if (tag == MP4DecSpecificDescrTag) {
472 dprintf("Specific MPEG4 header len=%d\n", len);
473 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
474 if (st->codec->extradata) {
475 get_buffer(pb, st->codec->extradata, len);
476 st->codec->extradata_size = len;
478 if ((*st->codec->extradata >> 3) == 29) {
479 st->codec->codec_id = CODEC_ID_MP3ON4;
487 /* this atom contains actual media data */
488 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
490 if(atom.size == 0) /* wrong one (MP4) */
492 c->mdat_list = av_realloc(c->mdat_list, (c->mdat_count + 1) * sizeof(*c->mdat_list));
493 c->mdat_list[c->mdat_count].offset = atom.offset;
494 c->mdat_list[c->mdat_count].size = atom.size;
497 c->mdat_offset = atom.offset;
498 c->mdat_size = atom.size;
500 return 1; /* found both, just go */
501 url_fskip(pb, atom.size);
502 return 0; /* now go for moov */
505 static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
507 uint32_t type = get_le32(pb);
511 case MKTAG('i', 's', 'o', 'm'):
512 case MKTAG('m', 'p', '4', '1'):
513 case MKTAG('m', 'p', '4', '2'):
514 case MKTAG('3', 'g', 'p', '1'):
515 case MKTAG('3', 'g', 'p', '2'):
516 case MKTAG('3', 'g', '2', 'a'):
517 case MKTAG('3', 'g', 'p', '3'):
518 case MKTAG('3', 'g', 'p', '4'):
519 case MKTAG('3', 'g', 'p', '5'):
520 case MKTAG('m', 'm', 'p', '4'): /* Mobile MP4 */
521 case MKTAG('M', '4', 'A', ' '): /* Apple iTunes AAC-LC Audio */
522 case MKTAG('M', '4', 'P', ' '): /* Apple iTunes AAC-LC Protected Audio */
523 case MKTAG('m', 'j', 'p', '2'): /* Motion Jpeg 2000 */
524 case MKTAG('q', 't', ' ', ' '):
526 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
528 get_be32(pb); /* minor version */
529 url_fskip(pb, atom.size - 8);
533 /* this atom should contain all header atoms */
534 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
538 err = mov_read_default(c, pb, atom);
539 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
540 /* so we don't parse the whole file if over a network */
543 return 1; /* found both, just go */
544 return 0; /* now go for mdat */
548 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
550 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
551 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
552 int version = get_byte(pb);
556 return 1; /* unsupported */
558 get_byte(pb); get_byte(pb);
559 get_byte(pb); /* flags */
565 get_be32(pb); /* creation time */
566 get_be32(pb); /* modification time */
569 sc->time_scale = get_be32(pb);
570 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
572 lang = get_be16(pb); /* language */
573 ff_mov_lang_to_iso639(lang, st->language);
574 get_be16(pb); /* quality */
579 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
581 int version = get_byte(pb); /* version */
582 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
588 get_be32(pb); /* creation time */
589 get_be32(pb); /* modification time */
591 c->time_scale = get_be32(pb); /* time scale */
593 av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
595 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
596 get_be32(pb); /* preferred scale */
598 get_be16(pb); /* preferred volume */
600 url_fskip(pb, 10); /* reserved */
602 url_fskip(pb, 36); /* display matrix */
604 get_be32(pb); /* preview time */
605 get_be32(pb); /* preview duration */
606 get_be32(pb); /* poster time */
607 get_be32(pb); /* selection time */
608 get_be32(pb); /* selection duration */
609 get_be32(pb); /* current time */
610 get_be32(pb); /* next track ID */
615 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
617 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
619 if((uint64_t)atom.size > (1<<30))
622 // currently SVQ3 decoder expect full STSD header - so let's fake it
623 // this should be fixed and just SMI header should be passed
624 av_free(st->codec->extradata);
625 st->codec->extradata_size = 0x5a + atom.size;
626 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
628 if (st->codec->extradata) {
629 strcpy(st->codec->extradata, "SVQ3"); // fake
630 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
631 dprintf("Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
633 url_fskip(pb, atom.size);
638 static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
640 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
641 int little_endian = get_be16(pb);
644 switch (st->codec->codec_id) {
645 case CODEC_ID_PCM_S24BE:
646 st->codec->codec_id = CODEC_ID_PCM_S24LE;
648 case CODEC_ID_PCM_S32BE:
649 st->codec->codec_id = CODEC_ID_PCM_S32LE;
658 static int mov_read_alac(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
660 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
662 // currently ALAC decoder expect full atom header - so let's fake it
663 // this should be fixed and just ALAC header should be passed
665 av_free(st->codec->extradata);
666 st->codec->extradata_size = 36;
667 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
669 if (st->codec->extradata) {
670 strcpy(st->codec->extradata + 4, "alac"); // fake
671 get_buffer(pb, st->codec->extradata + 8, 36 - 8);
672 dprintf("Reading alac %d %s\n", st->codec->extradata_size, st->codec->extradata);
674 url_fskip(pb, atom.size);
678 static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
680 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
682 if((uint64_t)atom.size > (1<<30))
685 if (st->codec->codec_id == CODEC_ID_QDM2) {
686 // pass all frma atom to codec, needed at least for QDM2
687 av_free(st->codec->extradata);
688 st->codec->extradata_size = atom.size;
689 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
691 if (st->codec->extradata) {
692 get_buffer(pb, st->codec->extradata, atom.size);
694 url_fskip(pb, atom.size);
695 } else if (atom.size > 8) { /* to read frma, esds atoms */
696 mov_read_default(c, pb, atom);
698 url_fskip(pb, atom.size);
702 static int mov_read_jp2h(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
704 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
706 if((uint64_t)atom.size > (1<<30))
709 av_free(st->codec->extradata);
711 st->codec->extradata_size = atom.size + 8;
712 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
714 /* pass all jp2h atom to codec */
715 if (st->codec->extradata) {
716 strcpy(st->codec->extradata + 4, "jp2h");
717 get_buffer(pb, st->codec->extradata + 8, atom.size);
719 url_fskip(pb, atom.size);
723 static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
725 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
727 if((uint64_t)atom.size > (1<<30))
730 av_free(st->codec->extradata);
732 st->codec->extradata_size = atom.size;
733 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
735 if (st->codec->extradata) {
736 get_buffer(pb, st->codec->extradata, atom.size);
738 url_fskip(pb, atom.size);
743 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
745 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
746 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
747 unsigned int i, entries;
749 get_byte(pb); /* version */
750 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
752 entries = get_be32(pb);
754 if(entries >= UINT_MAX/sizeof(int64_t))
757 sc->chunk_count = entries;
758 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
759 if (!sc->chunk_offsets)
761 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
762 for(i=0; i<entries; i++) {
763 sc->chunk_offsets[i] = get_be32(pb);
765 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
766 for(i=0; i<entries; i++) {
767 sc->chunk_offsets[i] = get_be64(pb);
775 static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
777 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
778 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
779 int entries, frames_per_sample;
781 uint8_t codec_name[32];
783 /* for palette traversal */
791 unsigned char *color_table;
793 unsigned char r, g, b;
795 get_byte(pb); /* version */
796 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
798 entries = get_be32(pb);
800 while(entries--) { //Parsing Sample description table
802 MOV_atom_t a = { 0, 0, 0 };
803 offset_t start_pos = url_ftell(pb);
804 int size = get_be32(pb); /* size */
805 format = get_le32(pb); /* data format */
807 get_be32(pb); /* reserved */
808 get_be16(pb); /* reserved */
809 get_be16(pb); /* index */
811 if (st->codec->codec_tag) {
812 /* multiple fourcc, just skip for now */
813 url_fskip(pb, size - (url_ftell(pb) - start_pos));
817 st->codec->codec_tag = format;
818 id = codec_get_id(mov_audio_tags, format);
820 st->codec->codec_type = CODEC_TYPE_AUDIO;
821 } else if (format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
822 id = codec_get_id(mov_video_tags, format);
824 id = codec_get_id(codec_bmp_tags, format);
826 st->codec->codec_type = CODEC_TYPE_VIDEO;
829 dprintf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
831 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff,
832 st->codec->codec_type);
834 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
835 st->codec->codec_id = id;
836 get_be16(pb); /* version */
837 get_be16(pb); /* revision level */
838 get_be32(pb); /* vendor */
839 get_be32(pb); /* temporal quality */
840 get_be32(pb); /* spacial quality */
842 st->codec->width = get_be16(pb); /* width */
843 st->codec->height = get_be16(pb); /* height */
845 get_be32(pb); /* horiz resolution */
846 get_be32(pb); /* vert resolution */
847 get_be32(pb); /* data size, always 0 */
848 frames_per_sample = get_be16(pb); /* frames per samples */
850 av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
852 get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
853 if (codec_name[0] <= 31) {
854 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
855 st->codec->codec_name[codec_name[0]] = 0;
858 st->codec->bits_per_sample = get_be16(pb); /* depth */
859 st->codec->color_table_id = get_be16(pb); /* colortable id */
861 /* figure out the palette situation */
862 color_depth = st->codec->bits_per_sample & 0x1F;
863 color_greyscale = st->codec->bits_per_sample & 0x20;
865 /* if the depth is 2, 4, or 8 bpp, file is palettized */
866 if ((color_depth == 2) || (color_depth == 4) ||
867 (color_depth == 8)) {
869 if (color_greyscale) {
871 /* compute the greyscale palette */
872 color_count = 1 << color_depth;
874 color_dec = 256 / (color_count - 1);
875 for (j = 0; j < color_count; j++) {
876 r = g = b = color_index;
877 c->palette_control.palette[j] =
878 (r << 16) | (g << 8) | (b);
879 color_index -= color_dec;
884 } else if (st->codec->color_table_id & 0x08) {
886 /* if flag bit 3 is set, use the default palette */
887 color_count = 1 << color_depth;
888 if (color_depth == 2)
889 color_table = ff_qt_default_palette_4;
890 else if (color_depth == 4)
891 color_table = ff_qt_default_palette_16;
893 color_table = ff_qt_default_palette_256;
895 for (j = 0; j < color_count; j++) {
896 r = color_table[j * 4 + 0];
897 g = color_table[j * 4 + 1];
898 b = color_table[j * 4 + 2];
899 c->palette_control.palette[j] =
900 (r << 16) | (g << 8) | (b);
905 /* load the palette from the file */
906 color_start = get_be32(pb);
907 color_count = get_be16(pb);
908 color_end = get_be16(pb);
909 for (j = color_start; j <= color_end; j++) {
910 /* each R, G, or B component is 16 bits;
911 * only use the top 8 bits; skip alpha bytes
921 c->palette_control.palette[j] =
922 (r << 16) | (g << 8) | (b);
926 st->codec->palctrl = &c->palette_control;
927 st->codec->palctrl->palette_changed = 1;
929 st->codec->palctrl = NULL;
930 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
932 uint16_t version = get_be16(pb);
934 st->codec->codec_id = id;
935 get_be16(pb); /* revision level */
936 get_be32(pb); /* vendor */
938 st->codec->channels = get_be16(pb); /* channel count */
939 dprintf("audio channels %d\n", st->codec->channels);
940 st->codec->bits_per_sample = get_be16(pb); /* sample size */
941 /* do we need to force to 16 for AMR ? */
943 /* handle specific s8 codec */
944 get_be16(pb); /* compression id = 0*/
945 get_be16(pb); /* packet size = 0 */
947 st->codec->sample_rate = ((get_be32(pb) >> 16));
949 switch (st->codec->codec_id) {
950 case CODEC_ID_PCM_S8:
951 case CODEC_ID_PCM_U8:
952 if (st->codec->bits_per_sample == 16)
953 st->codec->codec_id = CODEC_ID_PCM_S16BE;
955 case CODEC_ID_PCM_S16LE:
956 case CODEC_ID_PCM_S16BE:
957 if (st->codec->bits_per_sample == 8)
958 st->codec->codec_id = CODEC_ID_PCM_S8;
959 else if (st->codec->bits_per_sample == 24)
960 st->codec->codec_id = CODEC_ID_PCM_S24BE;
966 //Read QT version 1 fields. In version 0 theese dont exist
967 dprintf("version =%d\n",version);
969 sc->sample_size_v1.den = get_be32(pb); /* samples per packet */
970 get_be32(pb); /* bytes per packet */
971 sc->sample_size_v1.num = get_be32(pb); /* bytes per frame */
972 get_be32(pb); /* bytes per sample */
973 } else if(version==2) {
974 get_be32(pb); /* sizeof struct only */
975 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
976 st->codec->channels = get_be32(pb);
977 get_be32(pb); /* always 0x7F000000 */
978 get_be32(pb); /* bits per channel if sound is uncompressed */
979 get_be32(pb); /* lcpm format specific flag */
980 get_be32(pb); /* bytes per audio packet if constant */
981 get_be32(pb); /* lpcm frames per audio packet if constant */
984 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
985 if (bits_per_sample) {
986 st->codec->bits_per_sample = bits_per_sample;
987 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
990 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
991 url_fskip(pb, size - (url_ftell(pb) - start_pos));
993 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
994 a.size = size - (url_ftell(pb) - start_pos);
996 mov_read_default(c, pb, a);
998 url_fskip(pb, a.size);
1001 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
1002 st->codec->sample_rate= sc->time_scale;
1005 /* special codec parameters handling */
1006 switch (st->codec->codec_id) {
1007 #ifdef CONFIG_H261_DECODER
1010 #ifdef CONFIG_H263_DECODER
1013 #ifdef CONFIG_MPEG4_DECODER
1014 case CODEC_ID_MPEG4:
1016 st->codec->width= 0; /* let decoder init width/height */
1017 st->codec->height= 0;
1022 #ifdef CONFIG_VORBIS_DECODER
1023 case CODEC_ID_VORBIS:
1025 case CODEC_ID_MP3ON4:
1026 st->codec->sample_rate= 0; /* let decoder init parameters properly */
1028 #ifdef CONFIG_DV_DEMUXER
1029 case CODEC_ID_DVAUDIO:
1030 c->dv_fctx = av_alloc_format_context();
1031 c->dv_demux = dv_init_demux(c->dv_fctx);
1033 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1036 sc->dv_audio_container = 1;
1037 st->codec->codec_id = CODEC_ID_PCM_S16LE;
1040 /* no ifdef since parameters are always those */
1041 case CODEC_ID_AMR_WB:
1042 st->codec->sample_rate= 16000;
1043 st->codec->channels= 1; /* really needed */
1045 case CODEC_ID_AMR_NB:
1046 st->codec->sample_rate= 8000;
1047 st->codec->channels= 1; /* really needed */
1050 st->need_parsing = 1;
1059 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1061 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1062 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1063 unsigned int i, entries;
1065 get_byte(pb); /* version */
1066 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1068 entries = get_be32(pb);
1070 if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
1074 av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1076 sc->sample_to_chunk_sz = entries;
1077 sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1078 if (!sc->sample_to_chunk)
1080 for(i=0; i<entries; i++) {
1081 sc->sample_to_chunk[i].first = get_be32(pb);
1082 sc->sample_to_chunk[i].count = get_be32(pb);
1083 sc->sample_to_chunk[i].id = get_be32(pb);
1088 static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1090 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1091 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1092 unsigned int i, entries;
1094 get_byte(pb); /* version */
1095 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1097 entries = get_be32(pb);
1099 if(entries >= UINT_MAX / sizeof(long))
1102 sc->keyframe_count = entries;
1104 av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %ld\n", sc->keyframe_count);
1106 sc->keyframes = av_malloc(entries * sizeof(long));
1109 for(i=0; i<entries; i++) {
1110 sc->keyframes[i] = get_be32(pb);
1112 /* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
1118 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1120 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1121 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1122 unsigned int i, entries, sample_size;
1124 get_byte(pb); /* version */
1125 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1127 sample_size = get_be32(pb);
1128 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1129 sc->sample_size = sample_size;
1130 entries = get_be32(pb);
1131 if(entries >= UINT_MAX / sizeof(long))
1134 sc->sample_count = entries;
1139 av_log(NULL, AV_LOG_DEBUG, "sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
1141 sc->sample_sizes = av_malloc(entries * sizeof(long));
1142 if (!sc->sample_sizes)
1144 for(i=0; i<entries; i++) {
1145 sc->sample_sizes[i] = get_be32(pb);
1147 av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
1153 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1155 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1156 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1157 unsigned int i, entries;
1159 int64_t total_sample_count=0;
1161 get_byte(pb); /* version */
1162 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1163 entries = get_be32(pb);
1164 if(entries >= UINT_MAX / sizeof(Time2Sample))
1167 sc->stts_count = entries;
1168 sc->stts_data = av_malloc(entries * sizeof(Time2Sample));
1171 av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1176 for(i=0; i<entries; i++) {
1177 int sample_duration;
1180 sample_count=get_be32(pb);
1181 sample_duration = get_be32(pb);
1182 sc->stts_data[i].count= sample_count;
1183 sc->stts_data[i].duration= sample_duration;
1185 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
1187 dprintf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1189 duration+=(int64_t)sample_duration*sample_count;
1190 total_sample_count+=sample_count;
1193 st->nb_frames= total_sample_count;
1195 st->duration= duration;
1199 static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1201 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1202 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1203 unsigned int i, entries;
1205 get_byte(pb); /* version */
1206 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1207 entries = get_be32(pb);
1208 if(entries >= UINT_MAX / sizeof(Time2Sample))
1211 sc->ctts_count = entries;
1212 sc->ctts_data = av_malloc(entries * sizeof(Time2Sample));
1214 dprintf("track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1216 for(i=0; i<entries; i++) {
1217 int count =get_be32(pb);
1218 int duration =get_be32(pb);
1221 av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
1223 url_fskip(pb, 8 * (entries - i - 1));
1226 sc->ctts_data[i].count = count;
1227 sc->ctts_data[i].duration= duration;
1229 sc->time_rate= ff_gcd(sc->time_rate, duration);
1234 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1237 MOVStreamContext *sc;
1239 st = av_new_stream(c->fc, c->fc->nb_streams);
1241 sc = av_mallocz(sizeof(MOVStreamContext));
1248 st->codec->codec_type = CODEC_TYPE_DATA;
1249 st->start_time = 0; /* XXX: check */
1250 c->streams[c->fc->nb_streams-1] = sc;
1252 return mov_read_default(c, pb, atom);
1255 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1257 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1258 int version = get_byte(pb);
1260 get_byte(pb); get_byte(pb);
1261 get_byte(pb); /* flags */
1263 MOV_TRACK_ENABLED 0x0001
1264 MOV_TRACK_IN_MOVIE 0x0002
1265 MOV_TRACK_IN_PREVIEW 0x0004
1266 MOV_TRACK_IN_POSTER 0x0008
1273 get_be32(pb); /* creation time */
1274 get_be32(pb); /* modification time */
1276 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1277 get_be32(pb); /* reserved */
1278 st->start_time = 0; /* check */
1279 (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
1280 get_be32(pb); /* reserved */
1281 get_be32(pb); /* reserved */
1283 get_be16(pb); /* layer */
1284 get_be16(pb); /* alternate group */
1285 get_be16(pb); /* volume */
1286 get_be16(pb); /* reserved */
1288 url_fskip(pb, 36); /* display matrix */
1290 /* those are fixed-point */
1291 get_be32(pb); /* track width */
1292 get_be32(pb); /* track height */
1297 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1298 /* like the files created with Adobe Premiere 5.0, for samples see */
1299 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1300 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1305 return 0; /* continue */
1306 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1307 url_fskip(pb, atom.size - 4);
1310 atom.type = get_le32(pb);
1313 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1314 url_fskip(pb, atom.size);
1317 err = mov_read_mdat(c, pb, atom);
1321 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1326 uint8_t *moov_data; /* uncompressed data */
1327 long cmov_len, moov_len;
1330 get_be32(pb); /* dcom atom */
1331 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1333 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1334 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
1337 get_be32(pb); /* cmvd atom */
1338 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1340 moov_len = get_be32(pb); /* uncompressed size */
1341 cmov_len = atom.size - 6 * 4;
1343 cmov_data = av_malloc(cmov_len);
1346 moov_data = av_malloc(moov_len);
1351 get_buffer(pb, cmov_data, cmov_len);
1352 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1354 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
1356 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1358 atom.size = moov_len;
1360 // { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1362 ret = mov_read_default(c, &ctx, atom);
1367 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1372 /* edit list atom */
1373 static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1377 get_byte(pb); /* version */
1378 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1379 edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb); /* entries */
1381 for(i=0; i<edit_count; i++){
1382 get_be32(pb); /* Track duration */
1383 get_be32(pb); /* Media time */
1384 get_be32(pb); /* Media rate */
1386 dprintf("track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
1390 static const MOVParseTableEntry mov_default_parse_table[] = {
1392 { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1393 { MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
1394 { MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1395 { MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
1396 { MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
1397 { MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
1398 { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1399 { MKTAG( 'j', 'p', '2', 'h' ), mov_read_jp2h },
1400 { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1401 { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1402 { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1403 { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1404 { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1405 { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1406 { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
1407 { MKTAG( 'a', 'l', 'a', 'c' ), mov_read_alac }, /* alac specific atom */
1408 { MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
1409 { MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1410 { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1411 { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1412 { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1413 { MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
1414 { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1415 { MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1416 { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1417 { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1418 { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
1419 { MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1420 { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1421 { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1422 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1426 static void mov_free_stream_context(MOVStreamContext *sc)
1429 av_freep(&sc->ctts_data);
1434 /* XXX: is it sufficient ? */
1435 static int mov_probe(AVProbeData *p)
1437 unsigned int offset;
1441 /* check file header */
1442 if (p->buf_size <= 12)
1446 /* ignore invalid offset */
1447 if ((offset + 8) > (unsigned int)p->buf_size)
1449 tag = LE_32(p->buf + offset + 4);
1451 /* check for obvious tags */
1452 case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
1453 case MKTAG( 'm', 'o', 'o', 'v' ):
1454 case MKTAG( 'm', 'd', 'a', 't' ):
1455 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1456 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1457 return AVPROBE_SCORE_MAX;
1458 /* those are more common words, so rate then a bit less */
1459 case MKTAG( 'w', 'i', 'd', 'e' ):
1460 case MKTAG( 'f', 'r', 'e', 'e' ):
1461 case MKTAG( 'j', 'u', 'n', 'k' ):
1462 case MKTAG( 'p', 'i', 'c', 't' ):
1463 return AVPROBE_SCORE_MAX - 5;
1464 case MKTAG( 'f', 't', 'y', 'p' ):
1465 case MKTAG( 's', 'k', 'i', 'p' ):
1466 case MKTAG( 'u', 'u', 'i', 'd' ):
1467 offset = BE_32(p->buf+offset) + offset;
1468 /* if we only find those cause probedata is too small at least rate them */
1469 score = AVPROBE_SCORE_MAX - 50;
1472 /* unrecognized tag */
1479 static void mov_build_index(MOVContext *mov, AVStream *st)
1481 MOVStreamContext *sc = st->priv_data;
1482 offset_t current_offset;
1483 int64_t current_dts = 0;
1489 if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO || sc->dv_audio_container) {
1490 int keyframe, sample_size;
1491 int current_sample = 0;
1492 int stts_sample = 0;
1495 st->nb_frames = sc->sample_count;
1496 for (i = 0; i < sc->chunk_count; i++) {
1497 current_offset = sc->chunk_offsets[i];
1498 if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1500 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1501 keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index];
1504 if (stss_index + 1 < sc->keyframe_count)
1507 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1508 dprintf("AVIndex stream %d, sample %d, offset %llx, dts %lld, size %d, distance %d, keyframe %d\n",
1509 st->index, current_sample, current_offset, current_dts, sample_size, distance, keyframe);
1510 av_add_index_entry(st, current_offset, current_dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0);
1511 current_offset += sample_size;
1512 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1513 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1516 if (current_sample + 1 < sc->sample_count)
1518 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1524 } else { /* read whole chunk */
1525 int chunk_samples, chunk_size, chunk_duration;
1527 for (i = 0; i < sc->chunk_count; i++) {
1528 current_offset = sc->chunk_offsets[i];
1529 if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1531 chunk_samples = sc->sample_to_chunk[stsc_index].count;
1532 /* get chunk size */
1533 if (sc->sample_size > 1 || st->codec->codec_id == CODEC_ID_PCM_U8 || st->codec->codec_id == CODEC_ID_PCM_S8)
1534 chunk_size = chunk_samples * sc->sample_size;
1535 else if (sc->sample_size_v1.den > 0 && (chunk_samples * sc->sample_size_v1.num % sc->sample_size_v1.den == 0))
1536 chunk_size = chunk_samples * sc->sample_size_v1.num / sc->sample_size_v1.den;
1537 else { /* workaround to find nearest next chunk offset */
1538 chunk_size = INT_MAX;
1539 for (j = 0; j < mov->total_streams; j++) {
1540 MOVStreamContext *msc = mov->streams[j];
1542 for (k = msc->next_chunk; k < msc->chunk_count; k++) {
1543 if (msc->chunk_offsets[k] > current_offset && msc->chunk_offsets[k] - current_offset < chunk_size) {
1544 chunk_size = msc->chunk_offsets[k] - current_offset;
1545 msc->next_chunk = k;
1550 /* check for last chunk */
1551 if (chunk_size == INT_MAX)
1552 for (j = 0; j < mov->mdat_count; j++) {
1553 dprintf("mdat %d, offset %llx, size %lld, current offset %llx\n",
1554 j, mov->mdat_list[j].offset, mov->mdat_list[j].size, current_offset);
1555 if (mov->mdat_list[j].offset <= current_offset && mov->mdat_list[j].offset + mov->mdat_list[j].size > current_offset)
1556 chunk_size = mov->mdat_list[j].offset + mov->mdat_list[j].size - current_offset;
1558 assert(chunk_size != INT_MAX);
1559 for (j = 0; j < mov->total_streams; j++) {
1560 mov->streams[j]->next_chunk = 0;
1563 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1564 /* get chunk duration */
1566 while (chunk_samples > 0) {
1567 if (chunk_samples < sc->stts_data[stts_index].count) {
1568 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1569 sc->stts_data[stts_index].count -= chunk_samples;
1572 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1573 chunk_samples -= sc->stts_data[stts_index].count;
1574 if (stts_index + 1 < sc->stts_count) {
1579 dprintf("AVIndex stream %d, chunk %d, offset %llx, dts %lld, size %d, duration %d\n",
1580 st->index, i, current_offset, current_dts, chunk_size, chunk_duration);
1581 assert(chunk_duration % sc->time_rate == 0);
1582 current_dts += chunk_duration / sc->time_rate;
1585 /* adjust sample count to avindex entries */
1586 sc->sample_count = st->nb_index_entries;
1589 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1591 MOVContext *mov = (MOVContext *) s->priv_data;
1592 ByteIOContext *pb = &s->pb;
1594 MOV_atom_t atom = { 0, 0, 0 };
1597 mov->parse_table = mov_default_parse_table;
1599 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1600 atom.size = url_fsize(pb);
1602 atom.size = 0x7FFFFFFFFFFFFFFFLL;
1604 /* check MOV header */
1605 err = mov_read_default(mov, pb, atom);
1606 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1607 av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n",
1608 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1611 dprintf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1613 /* some cleanup : make sure we are on the mdat atom */
1614 if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1615 url_fseek(pb, mov->mdat_offset, SEEK_SET);
1617 mov->total_streams = s->nb_streams;
1619 for(i=0; i<mov->total_streams; i++) {
1620 MOVStreamContext *sc = mov->streams[i];
1625 sc->time_scale= mov->time_scale;
1626 av_set_pts_info(s->streams[i], 64, sc->time_rate, sc->time_scale);
1628 if(s->streams[i]->duration != AV_NOPTS_VALUE){
1629 assert(s->streams[i]->duration % sc->time_rate == 0);
1630 s->streams[i]->duration /= sc->time_rate;
1633 mov_build_index(mov, s->streams[i]);
1636 for(i=0; i<mov->total_streams; i++) {
1637 /* dont need those anymore */
1638 av_freep(&mov->streams[i]->chunk_offsets);
1639 av_freep(&mov->streams[i]->sample_to_chunk);
1640 av_freep(&mov->streams[i]->sample_sizes);
1641 av_freep(&mov->streams[i]->keyframes);
1642 av_freep(&mov->streams[i]->stts_data);
1644 av_freep(&mov->mdat_list);
1648 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1650 MOVContext *mov = s->priv_data;
1651 MOVStreamContext *sc = 0;
1652 AVIndexEntry *sample = 0;
1653 int64_t best_dts = INT64_MAX;
1656 for (i = 0; i < mov->total_streams; i++) {
1657 MOVStreamContext *msc = mov->streams[i];
1659 if (s->streams[i]->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) {
1660 AVIndexEntry *current_sample = &s->streams[i]->index_entries[msc->current_sample];
1661 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale);
1663 dprintf("stream %d, sample %ld, dts %lld\n", i, msc->current_sample, dts);
1664 if (dts < best_dts) {
1665 sample = current_sample;
1673 /* must be done just before reading, to avoid infinite loop on sample */
1674 sc->current_sample++;
1675 if (sample->pos >= url_fsize(&s->pb)) {
1676 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos);
1679 #ifdef CONFIG_DV_DEMUXER
1680 if (sc->dv_audio_container) {
1681 dv_get_packet(mov->dv_demux, pkt);
1682 dprintf("dv audio pkt size %d\n", pkt->size);
1685 url_fseek(&s->pb, sample->pos, SEEK_SET);
1686 av_get_packet(&s->pb, pkt, sample->size);
1687 #ifdef CONFIG_DV_DEMUXER
1688 if (mov->dv_demux) {
1689 void *pkt_destruct_func = pkt->destruct;
1690 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1691 pkt->destruct = pkt_destruct_func;
1695 pkt->stream_index = sc->ffindex;
1696 pkt->dts = sample->timestamp;
1697 if (sc->ctts_data) {
1698 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1699 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1700 /* update ctts context */
1701 sc->sample_to_ctime_sample++;
1702 if (sc->sample_to_ctime_index < sc->ctts_count && sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
1703 sc->sample_to_ctime_index++;
1704 sc->sample_to_ctime_sample = 0;
1707 pkt->pts = pkt->dts;
1709 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1710 pkt->pos = sample->pos;
1711 dprintf("stream %d, pts %lld, dts %lld, pos 0x%llx, duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
1715 static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1717 MOVStreamContext *sc = st->priv_data;
1718 int sample, time_sample;
1721 sample = av_index_search_timestamp(st, timestamp, flags);
1722 dprintf("stream %d, timestamp %lld, sample %d\n", st->index, timestamp, sample);
1723 if (sample < 0) /* not sure what to do */
1725 sc->current_sample = sample;
1726 dprintf("stream %d, found sample %ld\n", st->index, sc->current_sample);
1727 /* adjust ctts index */
1728 if (sc->ctts_data) {
1730 for (i = 0; i < sc->ctts_count; i++) {
1731 time_sample += sc->ctts_data[i].count;
1732 if (time_sample >= sc->current_sample) {
1733 sc->sample_to_ctime_index = i;
1734 sc->sample_to_ctime_sample = time_sample - sc->current_sample;
1742 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
1745 int64_t seek_timestamp, timestamp;
1749 if (stream_index >= s->nb_streams)
1752 st = s->streams[stream_index];
1753 sample = mov_seek_stream(st, sample_time, flags);
1757 /* adjust seek timestamp to found sample timestamp */
1758 seek_timestamp = st->index_entries[sample].timestamp;
1760 for (i = 0; i < s->nb_streams; i++) {
1762 if (stream_index == i || st->discard == AVDISCARD_ALL)
1765 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1766 mov_seek_stream(st, timestamp, flags);
1771 static int mov_read_close(AVFormatContext *s)
1774 MOVContext *mov = (MOVContext *) s->priv_data;
1775 for(i=0; i<mov->total_streams; i++)
1776 mov_free_stream_context(mov->streams[i]);
1777 /* free color tabs */
1778 for(i=0; i<mov->ctab_size; i++)
1779 av_freep(&mov->ctab[i]);
1781 for(i=0; i<mov->dv_fctx->nb_streams; i++){
1782 av_freep(&mov->dv_fctx->streams[i]->codec);
1783 av_freep(&mov->dv_fctx->streams[i]);
1785 av_freep(&mov->dv_fctx);
1786 av_freep(&mov->dv_demux);
1788 av_freep(&mov->ctab);
1792 AVInputFormat mov_demuxer = {
1793 "mov,mp4,m4a,3gp,3g2,mj2",
1794 "QuickTime/MPEG4/Motion JPEG 2000 format",